| Spin-glass state and ferromagnetic order in Cu(II)－Fe(III) cyanides |
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| 引用本文： | 何云,戴耀东,黄红波,林俊,夏元复.Spin-glass state and ferromagnetic order in Cu(II)－Fe(III) cyanides[J].中国物理 B,2004,13(5):746-749. |
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| 作者姓名： | 何云 戴耀东 黄红波 林俊 夏元复 |
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| 作者单位： | (1)College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; (2)Department of Physics, Nanjing University, Nanjing 210093, China; (3)Department of Physics, Nanjing University, Nanjing 210093, China; College Physics and Information Technology, Guangxi Normal University 541004, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 19835050). |
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| 摘 要： | The static and dynamic magnetic properties of a Prussian blue analogue, molecular magnet Cu^Ⅱ_{3}Fe^Ⅲ(CN)_6]_2·3NH_3·6H_2O were investigated in detail. The H dependence of the linear AC susceptibility, the irreversibility in the field-cooled (FC)/zero-field-cooled (ZFC) magnetization (M_{FC}/M_{ZFC}) and the relaxation of M_{ZFC} suggest that the magnetic system can be visualized as containing a ferromagnetic cluster of spin below T_C, mixed with small spin-glass clusters formed below temperature T_g less than T_C. The observed magnetic properties are explained with a ferromagnetic-spin-glass phase model. The magnetic ordering of the sample occurs below 19.8K.
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| 关 键 词： | 自旋玻璃 铁磁相互作用 氰化铁 氰化铜 量子设计 |
| 收稿时间： | 2003-07-24 |
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